Don't run with scissors!
Don't make that face or it'll freeze in that position.
Always change your underwear; you never know when you'll have an accident.
Be careful or you'll put your eye out!
What if everyone jumped off a cliff? Would you do it, too?
Don't put that in your mouth; you don't know where it's been!
Eat your vegetables, there are children in China/Africa/Vietnam who would be happy to have some broccoli.
I have eyes in the back of my head and can see every move you make.
and the age old...
... because I'm your mother. That's why.
So, hug your mom/mom-in-training/motherly person in your life today. If you are not with her, call her and wish her a very happy Mother's Day.
To all our super-moms and super-mom figures - we salute you!